Restoration wise, you’re going to want actual salt marshes on the coast. Up to the historical range of those biomes at least. The USDA reworked their fallow fi

Restoration wise, you’re going to want actual salt marshes on the coast. Up to the historical range of those biomes at least. The USDA reworked their fallow fields program a couple decades ago to pay for fallow fields low in watersheds, to reduce erosion and eutrophication. My reasoning is that you could use rice paddies to similar effect. Because they serve as containment ponds. So in this hypothetical you restore the coastline, then approach the farmers you didn’t displace about what to grow in their lowlands.